Overview
Configured for discrete actuator signal switching in a safety control I/O architecture, the Honeywell FS-SDO-0824 (FS-SDO Safe Digital Output Module) provides eight 24 VDC solid-state source outputs. The module uses short-circuit-proof output stages and accepts WDG input signals with an input current of 8 mA.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | Honeywell FS-SDO-0824 |
| Base Model | FS-SDO |
| Brand | Honeywell |
| Product Type | Safe Digital Output Module |
| Module Construction | FS-type, non conformal coated |
| Number of Output Channels | 8 |
| Output Type | 24 VDC solid-state source |
| Output Protection | Short-circuit proof |
| Maximum Current | 550 mA3 |
| Maximum Lamp Load | 120 mA (2.9 W) |
| Maximum Load Capacitance | 1 uF |
| Voltage Drop | < 2.0 VDC at 500 mA |
| Off Current | < 0.1 mA |
| WDG Input Current | 8 mA |
| 5 VDC Power Requirement | 25 mA |
| 24 VDC Internal Power Requirement | 25 mA |
| 24 VDC External Power Requirement | 70 mA without output load |
Honeywell Safety Output Characteristics
The FS-SDO-0824 provides eight discrete output channels with a 24 VDC solid-state source configuration. Each output uses short-circuit-proof circuitry. Therefore, the output stage can drive compatible field loads while limiting the specified electrical fault condition.
The module permits a maximum lamp load of 120 mA, corresponding to 2.9 W. In addition, the maximum load capacitance is 1 uF. The specified voltage drop remains below 2.0 VDC at a 500 mA output current.
The module also specifies an off-state current below 0.1 mA. Furthermore, the WDG input current is 8 mA. These values define the electrical interface between the module and connected field circuitry.
Frequently Asked Questions
Q: How many output channels does the FS-SDO-0824 provide?
A: The module provides 8 output channels.
Q: What output signal does the FS-SDO-0824 provide?
A: It provides 24 VDC solid-state source outputs with short-circuit protection.
Q: What load capacitance can the FS-SDO-0824 support?
A: The specified maximum load capacitance is 1 uF.
Field Installation Guidelines
Install the FS-SDO-0824 according to the applicable Honeywell system hardware documentation and approved cabinet design.
- Verify the module model and terminal assignment before wiring.
- Confirm the external 24 VDC supply requirements before energizing the module.
- Keep field output wiring separated from high-voltage power conductors where practical.
- Route signal wiring to minimize coupling from switching power equipment and high-current conductors.
- Use the specified protective and grounding practices for the host control cabinet.
- Connect cable shields according to the plant grounding design and the applicable Honeywell installation instructions.
- Verify output polarity and field load compatibility before applying power.
- Check the connected load against the specified 550 mA maximum current, 120 mA lamp-load limit, and 1 uF maximum capacitance.
- Do not assume hot-swap capability unless the host system documentation explicitly permits module replacement under power.
- The supplied data does not specify operating temperature, dimensions, weight, or installation torque. Use the applicable Honeywell hardware documentation for those parameters.
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